safety experts recommend that pilot training should focus more on monitoring complex cockpit technology. the ntsb has not determined the cause of either the asiana or ups crash. >>> emergency dispatchers are threatening to go on strike to protest mandatory overtime. the days patchers say they are forced to work hundreds of hours of overtime a month because of understaffing. right now there are 61 dispatchers to cover 73 full- time positions. county officials say they are trying to hire more dispatchers, but the qualified candidates are hard to find. >>> in the meantime, county officials say they will seek a court injunction against a strike by the dispatchers. >>> time now 7:216789 they're -- 7:216789 they're mar a -- 7:21. they're marshal artists. wait until you see what happened last night. >>> and a canadian dentist, what he plans to do with one of john lennon's teeth. you're on timeout leo! ♪ ♪ some things won't last 25 years. ah! woof. some things will. save up to 20% on an ikea kitchen. [ male announcer ] wouldn't it be great if all devices had backup power? the chevrolet volt